msm: mdss: Fix under run on HDMI on adb shell stop

Wait for at least one vsync on HDMI interface for
proper TG OFF. Calculate wait time based on hdmi
refresh rate.

Change-Id: Ia935886ba4cce9cf8d6ce994143b07060f648620
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
1 file changed